title: Surgical implantation of intra-abdominal radiotransmitters in marine otters (Lontra felina) in central Chile.
abstract: Six free-ranging marine otters (Lontra felina) were livetrapped on the central coast of Chile and implanted with specially designed radiotransmitters as part of a spatial ecology study. Marine otters frequent the rocky seashore, often squeezing their narrow bodies through cracks and crevices and grooming themselves on the rocks. They are also among the smallest of the otter species, weighing between 3.4 kg and 4.5 kg. For these reasons, the transmitter used was small, rectangular, and flat, measuring 3.5 x 3.2 x 1.0 cm. They were implanted using a ventral midline approach to minimize contact between the skin incision and sharp-edged rocks. Surgical incisions healed within 2 wk. The transmitters functioned well, but the duration varied from 62 days to 143 days instead of the 240 days predicted by the manufacturer. All six marine otters reestablished in their home ranges, and survey results suggest they survived well beyond the life of the transmitters.
authors.affiliation: Universidad Andrés Bello, Escuela de Medicina Veterinaria, Laboratorio de Salud de Ecosistemas, República 252, Santiago, Chile. csoto@unab.cl
authors.forename: Claudio
authors.initials: C
authors.lastname: Soto-Azat
authors.forename: Francisca
authors.initials: F
authors.lastname: Boher
authors.forename: Mauricio
authors.initials: M
authors.lastname: Fabry
authors.forename: Paulo
authors.initials: P
authors.lastname: Pascual
authors.forename: Gonzalo
authors.initials: G
authors.lastname: Medina-Vogel
mesh_terms: D000009:Abdominal Muscles / Q000601:surgery; D000823:Animal Identification Systems / Q000295:instrumentation* / Q000379:methods*; D000818:Animals; D002677:Chile; D005260:Female; D008297:Male; D010041:Otters / Q000601:surgery*; D019736:Prostheses and Implants / Q000662:veterinary*; D013686:Telemetry / Q000295:instrumentation / Q000379:methods / Q000662:veterinary*; D013997:Time Factors